This dissertation deals with the development of pluralism in social services and the specific role of non-profit organizations – public benefit corporations as social service providers. This paper uses welfare mix as a conceptual and theoretical framework. The paper highlights and problematizes the specific qualities of the common legacy of former socialist countries and the specific conditions of development of the welfare system and non-profit sector in Croatia in the post-transition period. The characteristics of the welfare mix model are explored from four aspects: the changes in discourses and predominant ideas; service financing; regulation; and service-provision framework. The welfare mix model characteristics are studied using the examples of two policies: preschool education services and institutional care for the elderly.